Chapter 2

Chapter 2:

Product Overview

Front Panel

The LEDs and ports are located on the front panel of the Switch..

Front Panel

POWER  (Green/Amber)  Lights up green to indicate that power is being supplied to the Switch.. Lights amber to indicate that the Switch’s power-on-self-test (POST) is in progress.. Blinks amber to indicate that the POST has failed..

LINK/ACT (1-48) (Green/Amber) Lights up green to indicate a functional 10/100Mbps network link through the corresponding port with an attached device that does not use Power over Ethernet (PoE).. Lights up amber to indicate a functional 10/100Mbps network link through the corresponding port with an attached PoE device.. Blinks green to indicate that the Switch is actively sending or receiving data over that port..

LINK/ACT (G1-G4) (Green/Amber) Lights up green to indicate a functional 10/100Mbps network link through the corresponding port with an attached device.. Blinks green to indicate that the Switch is actively sending or receiving data over that port.. Lights amber to indicate a functional 1000Mbps network link.. Blinks green to indicate that the Switch is actively sending or receiving data over that port.. No amber light indicated that the link is at 10/100Mbps or there is no link..

Product Overview

ETHERNET 1-48 These RJ-45 ports support network speeds of either 10Mbps or 100Mbps, and can operate in half and full-duplex modes.. Auto-sensing technology enables each port to automatically detect the speed of the device connected to it (10Mbps or 100Mbps), and adjust its speed and duplex accordingly..

The Switch’s 10/100 RJ-45 ports also support the IEEE 802..3af Power-over-Ethernet (PoE) standard that enables DC power to be supplied to attached devices using wires in the connecting twisted-pair cable.. Any 802..3af-compliant device attached to a port can directly draw power from the Switch over the twisted-pair cable without requiring its own separate power source.. This capability gives network administrators centralized power control for devices such as IP phones and wireless access points, which translates into greater network availability..

For each attached 802..3af-compliant device, the Switch automatically senses the load and dynamically supplies the required power.. The Switch delivers power to a device using the two data wire pairs in the twisted-pair cable.. Each port can provide up to 15..4W of power at the standard -48 VDC voltage..

To connect a device to a port, you will need to use Category 5 (or better) network cable..

ETHERNET G1-G4 The Switch is equipped with four Gigabit RJ-45 ports, two that are shared with two miniGBIC ports.. If a Gigabit miniGBIC port is being used, the associated RJ-45 port (G3 and/or G4) cannot be used..

All four ports support auto‑negotiation, so the optimum transmission mode (half or full duplex) and data rate (10, 100, or 1000 Mbps) can be selected automatically, if this feature is also supported by the attached device.. If a device connected to one of these ports does not support auto-negotiation, the communication mode of that port can be configured manually..

Each port also supports IEEE 802..3-2002 auto‑negotiation of flow control, so the Switch can automatically prevent port buffers from becoming saturated..

These ports support automatic MDI/MDI-X operation, so you can use straight-through cables for all network connections to PCs, servers, or additional switches..

48-Port 10/100 + 4-Port Gigabit Switch with WebView and Power over Ethernet



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Cisco Systems SRW248G4P manual Chapter Product Overview, Front Panel
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SRW248G4P specifications

Cisco Systems SRW248G4P is a high-performance Layer 2 switch designed specifically for small to medium-sized businesses that require robust networking solutions. This switch supports Power over Ethernet (PoE), providing a highly flexible option for powering devices such as IP phones, wireless access points, and surveillance cameras.

One of the standout features of the SRW248G4P is its 48 10/100 Ethernet ports, which ensure ample connectivity for various networked devices. Additionally, it offers four Gigabit Ethernet uplink ports, allowing for seamless integration with existing network infrastructure and facilitating high-speed data transfer. The combination of these ports enables businesses to expand their network capabilities as needed without the immediate requirement for added devices.

The SRW248G4P comes equipped with advanced Layer 2 switching capabilities, including VLAN support, which enables the segmentation of network traffic for improved performance and security. It also supports Spanning Tree Protocol (STP) and Rapid Spanning Tree Protocol (RSTP), which help prevent network loops and ensure redundancy. With features like Link Aggregation Control Protocol (LACP), multiple physical connections can be combined into a single logical link, enhancing bandwidth and providing failover capabilities.

Another critical attribute of the Cisco SRW248G4P is its user-friendly management interface. The switch can be managed through a web-based interface, allowing IT administrators to configure settings, monitor performance, and troubleshoot issues with ease. Additionally, it supports SNMP (Simple Network Management Protocol) for integration with network management systems, further simplifying monitoring tasks.

Power over Ethernet functionality is a significant advantage of the SRW248G4P, providing up to 15.4 watts per port. This capability simplifies installation and reduces the clutter of power cords and outlets. Organizations can deploy PoE-enabled devices in locations that lack power sources, thus enhancing overall flexibility in network design.

In summary, the Cisco Systems SRW248G4P is a feature-rich switch tailored for small to medium-sized enterprises. Its blend of performance, management capabilities, and advanced features like PoE makes it a valuable asset in any organization's networking setup. By ensuring reliable connectivity and ease of management, businesses can focus more on growth and their core objectives rather than worrying about network complexities.
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